African Journal of
Pharmacy and Pharmacology

  • Abbreviation: Afr. J. Pharm. Pharmacol.
  • Language: English
  • ISSN: 1996-0816
  • DOI: 10.5897/AJPP
  • Start Year: 2007
  • Published Articles: 2285

Full Length Research Paper

Effect of erythrinaline alkaloids from Erythrina lysistemon on human recombinant caspase-3

Shanta Armwood
  • Shanta Armwood
  • Department of Chemistry and Physics, Elizabeth City State University, 1704 Weeksville Road, Elizabeth City, North Carolina 27909, North Carolina, United States.
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Bernard F. Juma
  • Bernard F. Juma
  • Department of Chemistry, University of Botswana, Private Bag UB 00704, Gaborone, Botswana.
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Japheth O. Ombito
  • Japheth O. Ombito
  • Department of Chemistry, University of Botswana, Private Bag UB 00704, Gaborone, Botswana.
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Runner R. T. Majinda
  • Runner R. T. Majinda
  • Department of Chemistry, University of Botswana, Private Bag UB 00704, Gaborone, Botswana.
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Ephraim T. Gwebu
  • Ephraim T. Gwebu
  • Department of Chemistry and Physics, Elizabeth City State University, 1704 Weeksville Road, Elizabeth City, North Carolina 27909, North Carolina, United States.
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  •  Received: 14 July 2016
  •  Accepted: 18 May 2017
  •  Published: 22 April 2018

Abstract

Prostate cancer is a leading killer disease among men all over the world. Inducing apoptosis (programmed cell death) is a strategic chemotherapeutic approach. Caspase-3 is a key effector of apoptosis, and its activation promotes apoptosis. It was hypothesized that erythrinaline alkaloids activate caspase-3. The alkaloids were isolated from the flowers and pods of Erythrina lysistemon. Their effect on human recombinant caspase-3 was studied. This study reports that three erythrinaline alkaloids (+)-11α-hydroxyerysotrine N-oxide (1), (+)-11β-hydroxyerysotrine N-oxide (2) and (+)-11β-methoxyerysotrine N-oxide (3) activated human recombinant caspase-3 in a dose-dependent manner. Compound 1 and 2 increased the activity by five-fold while compound 3 increased it by ten-fold. Erythrinaline alkaloids exhibit remarkable ability to activate caspase-3 and may be lead compounds as potential therapeutics for the treatment of cancer as inducers of apoptosis in cancer cells.

Key words: Erythrinaline alkaloids, human recombinant caspase-3, apoptosis, prostate cancer.